เครื่องวัดกระแสชาร์จ USB current and voltage tester

Description:                                                                                                                                            
It can easily measure the USB port of the output voltage and device working current!(please note: it can only display to work with real time of electric voltage and current according to the facts, do not have to put all functions, namely cannot set the xyz voltage to current discharge! Small size, no need for power supply and other ancillary equipment, plug and play! Also detect any USB charger (computer USB, home charger, car charger) of the charging current and voltage, electrical performance and charging line filling judged whether performance is in line with the requirements of! Applicability is wide and any phone, any electronic products, you can use, easy to operate, suitable for factories, exhibition presentation, laboratory and users.                                                                              The performance parameters:
1. The input/output voltage 3v-9v
2. The voltage resolution: 0.01V
3. The input/output current: 0A-5A (recommended range 0-3A)
4. The current resolution: 0.01A
5. Accuracy: plus or minus 1%
6. Line loss: about 0.1 euro
7. The test content: voltage, current,
8. Communication function: have
9. Data calibration function: have          

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